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2026-05-25 17:07:28 +08:00
parent 30cba5ee96
commit df501f6151
10000 changed files with 276005 additions and 0 deletions
@@ -0,0 +1,40 @@
+// [times, realValue]
+
+const SPLIT = '%';
+
+/** Connect key with `SPLIT` */
+export function pathKey(keys) {
+  return keys.join(SPLIT);
+}
+class Entity {
+  instanceId;
+  constructor(instanceId) {
+    this.instanceId = instanceId;
+  }
+
+  /** @private Internal cache map. Do not access this directly */
+  cache = new Map();
+  get(keys) {
+    return this.opGet(pathKey(keys));
+  }
+
+  /** A fast get cache with `get` concat. */
+  opGet(keyPathStr) {
+    return this.cache.get(keyPathStr) || null;
+  }
+  update(keys, valueFn) {
+    return this.opUpdate(pathKey(keys), valueFn);
+  }
+
+  /** A fast get cache with `get` concat. */
+  opUpdate(keyPathStr, valueFn) {
+    const prevValue = this.cache.get(keyPathStr);
+    const nextValue = valueFn(prevValue);
+    if (nextValue === null) {
+      this.cache.delete(keyPathStr);
+    } else {
+      this.cache.set(keyPathStr, nextValue);
+    }
+  }
+}
+export default Entity;